A three-locus system of interspecific incompatibility underlies male inviability in hybrids between Drosophila buzzatii and D. koepferae Antonio R. CarvajalManuel R. GandarelaHoracio F. Naveira OriginalPaper Pages: 1 - 19
Effect of density on age-specific mortality in Drosophila: a density supplementation experiment Aziz A. KhazaeliLiang XiuJ. W. Curtsinger OriginalPaper Pages: 21 - 31
Excision of the piggyBac transposable element in vitro is a precise event that is enhanced by the expression of its encoded transposase Teresa A. ElickChristopher A. BauserM. J. Fraser OriginalPaper Pages: 33 - 41
Repeated horizontal transfer of P transposons between Scaptomyza pallida and Drosophila bifasciata S. HagemannE. HaringW. Pinsker OriginalPaper Pages: 43 - 51
Loss of nucleolar organizer regions during chromosomal evolution in the South American cricetid Graomys griseoflavus Andrés ZambelliLidia Vidal-Rioja OriginalPaper Pages: 53 - 57
NOR polymorphism in the Iberian species Chondrostoma lusitanicum (Pisces: Cyprinidae) Elsa RodriguesMaria João Collares-Pereira OriginalPaper Pages: 59 - 63
The nine-parameter gene conversion model: simpler equations, validity tests, and multiple fits Bernard C. Lamb OriginalPaper Pages: 65 - 73
The hybrid origin of the polyploid liverwort Pellia borealis Ireneusz J. OdrzykoskiEwa ChudzińskaJerzy Szweykowski OriginalPaper Pages: 75 - 86
Chromosomal variation in the scincid genus Mabuya and its arboreal relatives (Reptilia: Squamata) H. OtaT. HikidaJ. Nabhitabhata OriginalPaper Pages: 87 - 94
Chromosomal investigation of three Costa Rican frogs from the 30-chromosome radiation of Hyla with the description of a unique geographic variation in nucleolus organizer regions Hinrich KaiserChristine MaisMichael Schmid OriginalPaper Pages: 95 - 102
Chromosome association and pollen fertility of parental and interspecific hybrids of Lycopersicon esculentum X L. hirsutum and L. pennellii Soliman A. Haroun Short Communication Pages: 103 - 106
Replication banding in the chromosomes of the European eel (Anguilla anguilla) A. VinasC. GómezL. Sánchez Short Communication Pages: 107 - 110
Regional localization of human M-BCR gene to chromosome 23 band q11 in the great apes Rhea V. SamonteK. H. RameshRam S. Verma Short Communication Pages: 111 - 113
Alcohol dehydrogenase polymorphism in barrel cactus populations of Drosophila mojavensis Sophia ClelandGregory D. HocuttEdward Pfeiler Short Communication Pages: 115 - 117